US4133797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mineral-filled, high impact polyolefin molding compositions
Assignee: CONNOR Corp
•
Filing: 1976-08-04
•
Granted: 1979-01-09
•
Expires: 1996-08-04
Abstract
Abstract This invention relates to thermoplastic molding compositions suitable for molding or extruding articles such as thin-walled battery containers which possess high heat distortion temperatures and which also simultaneously possess excellent impact resistance at low temperature.
Inventors
- 👤 Michael R. Tirpak
- 👤 James J. Schouten
- 👤 Charles E. Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:32
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/10; C08K; C08K3/00; C08K3/34; C08K5/00; C08K5/54; C08L23/12; H; H01; H01M; H01M50/00; H01M50/10; H01M50/116; H01M50/117; H01M50/119; H01M50/121; H01M50/122; H01M50/131; H01M50/134; H01M50/14; C08L23/14; C08L23/142; C08L23/16; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 56
Claim 1
Independent Claim
61 words
A thermoplastic molding composition suitable for forming articles having high heat stability with high impact resistance at low temperature consisting essentially of a blend of an elastomeric polymer of 1-olefins and a thermoplastic polyolefin containing a finely divided feldsparic anhydrous alumino silicate, said elastomeric polymer being present in an amount of from about 10 weight percent to about 20 weight percent.
Claim 2
Dependent Claim
61 words
A thermoplastic molding composition suitable for forming articles having high heat stability with high impact resistance at low temperature consisting essentially of a blend of an elastomeric polymer of 1-olefins and a thermoplastic polyolefin containing a finely divided feldsparic anhydrous alumino silicate, said elastomeric polymer being present in an amount of from about 10 weight percent to about 20 weight percent.
Claim 3
Dependent Claim
26 words
The composition of claim 1 wherein the polyolefin is a homopolymer or copolymer of an olefin having from 2 to about 4 carbon atoms per molecule.
Claim 4
Dependent Claim
12 words
The composition of claim 2 wherein the polyolefin is a propylene homopolymer.
Claim 5
Dependent Claim
27 words
The composition of claim 1 wherein the elastomeric polymer is a homopolymer or copolymer of a 1-olefin having from 2 to about 6 carbon atoms per molecule.
Claim 6
Dependent Claim
14 words
The composition of claim 1 wherein the elastomeric polymer is a copolymer of ethylene.
Claim 7
Dependent Claim
16 words
The composition of claim 1 wherein the elastomeric polymer is a copolymer of ethylene and propylene.
Claim 8
Dependent Claim
22 words
The composition of claim 1 wherein the elastomeric polymer is a copolymer of propylene and a comonomer selected from butylene and hexene-1.
Claim 9
Dependent Claim
21 words
The composition of claim 1 wherein the polyolefin is present within from about 25 to 80 weight percent of the composition.
Claim 10
Dependent Claim
20 words
The composition of claim 1 wherein the elastomeric polymer is a copolymer of ethylene-propylene and the polyolefin is propylene homopolymer.
Claim 11
Dependent Claim
26 words
The composition of claim 9 wherein the propylene homopolymer is present within the range of from about 35 to about 67 weight percent of the composition.
Claim 12
Dependent Claim
33 words
The composition of claim 1 wherein the feldsparic alumino silicate is an anhydrous aluminum silicate combined with at least one metal selected from the group consisting of an alkali or alkaline earth metal.
Claim 13
Dependent Claim
19 words
The composition of claim 11 wherein the metal is at least one metal of calcium, sodium, potassium or barium.
Claim 14
Dependent Claim
12 words
The composition of claim 1 wherein the feldsparic alumino silicate is feldspar.
Claim 15
Dependent Claim
61 words
The composition of claim 1 wherein the anhydrous feldsparic alumino silicates contain aluminum calculated as Al 2 O 3 in excess of about 10 weight percent, silicates calculated as SiO in excess of about 50 weight percent and one or more alkali or alkaline earth metal calculated as an oxide in excess of about 5 weight percent of the alumino silicate.
Claim 16
Dependent Claim
23 words
The composition of claim 11 wherein the feldsparic alumino silicate has an average particle size of from about 4 to about 25 microns.
Claim 17
Dependent Claim
23 words
The composition of claim 15 wherein the feldsparic alumino silicate has an average particle size of from about 6 to about 15 microns.
Claim 18
Dependent Claim
41 words
The composition of claim 11 wherein the feldsparic alumino silicate has a Mohs' hardness of from about 5.0 to about 6.5 and an oil absorptivity of from about 12 to about 30 pounds of oil per pound of the alumino silicate.
Claim 19
Dependent Claim
27 words
The composition of claim 1 wherein the feldsparic alumino silicate is present within the range of from about 10 to about 50 weight percent of the composition.
Claim 20
Dependent Claim
27 words
The composition of claim 11 wherein the feldsparic alumino silicate is present within the range of from about 20 to about 45 weight percent of the composition.
Claim 21
Dependent Claim
48 words
The composition of claim 9 wherein the feldsparic alumino silicate is feldspar present within the range of from about 25 to about 45 weight percent of the composition, the propylene homopolymer is present within the range of from about 35 to about 67 weight percent of the composition.
Claim 22
Dependent Claim
39 words
The composition of claim 1 wherein the composition is moldable to form molded articles having a heat distortion temperature above about 220° F. and an impact resistance by the falling ball method at 0° F. above about 30 inch-pounds.
Claim 23
Dependent Claim
64 words
An article having high heat stability with high impact resistance at low temperature, such article being formed from a thermoplastic molding composition consisting essentially of a blend of an elastomeric polymer of 1-olefins and a thermoplastic polyolefin containing a finely divided feldsparic anhydrous alumino silicate, said elastomeric polymer being present in an amount of from about 10 weight percent to about 20 weight percent.
Claim 24
Dependent Claim
64 words
An article having high heat stability with high impact resistance at low temperature, such article being formed from a thermoplastic molding composition consisting essentially of a blend of an elastomeric polymer of 1-olefins and a thermoplastic polyolefin containing a finely divided feldsparic anhydrous alumino silicate, said elastomeric polymer being present in an amount of from about 10 weight percent to about 20 weight percent.
Claim 25
Dependent Claim
26 words
The article of claim 22 wherein the polyolefin is a homopolymer or copolymer of an olefin having from 2 to about 4 carbon atoms per molecule.
Claim 26
Dependent Claim
12 words
The article of claim 23 wherein the polyolefin is a propylene homopolymer.
Claim 27
Dependent Claim
27 words
The article of claim 22 wherein the elastomeric polymer is a homopolymer or copolymer of a 1-olefin having from 2 to about 6 carbon atoms per molecule.
Claim 28
Dependent Claim
14 words
The article of claim 25 wherein the elastomeric polymer is a copolymer of ethylene.
Claim 29
Dependent Claim
16 words
The article of claim 22 wherein the elastomeric polymer is a copolymer of ethylene and propylene.
Claim 30
Dependent Claim
22 words
The article of claim 22 wherein the elastomeric polymer is a copolymer of propylene and a comonomer selected from butylene and hexene-1.
Claim 31
Dependent Claim
21 words
The article of claim 22 wherein the polyolefin is present within from about 25 to 80 weight percent of the composition.
Claim 32
Dependent Claim
20 words
The article of claim 22 wherein the elastomeric polymer is a copolymer of ethylene-propylene and the polyolefin is propylene homopolymer.
Claim 33
Dependent Claim
26 words
The article of claim 30 wherein the propylene homopolymer is present within the range of from about 35 to about 67 weight percent of the composition.
Claim 34
Dependent Claim
33 words
The article of claim 22 wherein the feldsparic alumino silicate is an anhydrous aluminum silicate combined with at least one metal selected from the group consisting of an alkali or alkaline earth metal.
Claim 35
Dependent Claim
19 words
The article of claim 32 wherein the metal is at least one metal of calcium, sodium, potassium or barium.
Claim 36
Dependent Claim
12 words
The article of claim 22 wherein the feldsparic alumino silicate is feldspar.
Claim 37
Dependent Claim
61 words
The article of claim 32 wherein the anhydrous feldsparic alumino silicates contain aluminum calculated as Al 2 O 3 in excess of about 10 weight percent, silicates calculated as SiO in excess of about 50 weight percent and one or more alkali or alkaline earth metal calculated as an oxide in excess of about 5 weight percent of the alumino silicate.
Claim 38
Dependent Claim
23 words
The article of claim 32 wherein the feldsparic alumino silicate has an average particle size of from about 4 to about 25 microns.
Claim 39
Dependent Claim
23 words
The article of claim 32 wherein the feldsparic alumino silicate has an average particle size of from about 6 to about 15 microns.
Claim 40
Dependent Claim
41 words
The article of claim 32 wherein the feldsparic alumino silicate has a Mohs' hardness of from about 5.0 to about 6.5 and an oil absorptivity of from about 12 to about 30 pounds of oil per pound of the alumino silicate.
Claim 41
Dependent Claim
27 words
The article of claim 22 wherein the feldsparic alumino silicate is present within the range of from about 10 to about 50 weight percent of the composition.
Claim 42
Dependent Claim
27 words
The article of claim 22 wherein the feldsparic alumino silicate is present within the range of from about 25 to about 45 weight percent of the composition.
Claim 43
Dependent Claim
49 words
The article of claim 22 wherein the feldsparic alumino silicate is feldspar present within the range of from about 25 to about 45 weight percent of the composition, the polyolefin is propylene homopolymer present within the range of from about 35 to about 67 weight percent of the composition.
Claim 44
Dependent Claim
40 words
The article of claim 22 wherein such composition is moldable to form molded articles having a heat distortion temperature above about 220° F. and an impact resistance by the falling ball method at 0° F. above about 30 inch pounds.
Claim 45
Dependent Claim
133 words
A thermoplastic molding composition suitable for forming articles having high heat stability with high impact resistance at low temperature consisting essentially of a blend of propylene homopolymer and an elastomeric ethylene-propylene copolymer containing a finely divided feldsparic anhydrous alumino silicate wherein the feldsparic alumino silicate is present in the blend within the range of about 10 to about 50 weight percent and has an oil absorptivity of from about 12 to 30 pounds of oil per hundred pounds of the feldsparic alumino silicate and a Mohs' hardness of from about 5.0 to about 6.5, the blend contains substantially propylene homopolymer within the range of from about 35 to about 67 weight percent, and the elastomeric ethylene-propylene copolymer is present within the range of from about 10 to 20 weight percent of the blend.
Claim 46
Dependent Claim
133 words
A thermoplastic molding composition suitable for forming articles having high heat stability with high impact resistance at low temperature consisting essentially of a blend of propylene homopolymer and an elastomeric ethylene-propylene copolymer containing a finely divided feldsparic anhydrous alumino silicate wherein the feldsparic alumino silicate is present in the blend within the range of about 10 to about 50 weight percent and has an oil absorptivity of from about 12 to 30 pounds of oil per hundred pounds of the feldsparic alumino silicate and a Mohs' hardness of from about 5.0 to about 6.5, the blend contains substantially propylene homopolymer within the range of from about 35 to about 67 weight percent, and the elastomeric ethylene-propylene copolymer is present within the range of from about 10 to 20 weight percent of the blend.
Claim 47
Dependent Claim
136 words
An article having high heat stability with high impact resistance at low temperature such article being formed from a thermoplastic molding composition consisting essentially of a blend of propylene homopolymer and an elastomeric ethylene-propylene copolymer containing a finely divided feldsparic anhydrous alumino silicate wherein the feldsparic alumino silicate is present in the blend within the range of about 10 to about 50 weight percent and has an oil absorptivity of from about 12 to 30 pounds of oil per hundred pounds of the feldsparic alumino silicate and a Mohs' hardness of from about 5.0 to about 6.5, the blend contains substantially propylene homopolymer within the range of from about 35 to about 67 weight percent, and the elastomeric ethylene-propylene copolymer is present within the range of from about 10 to 20 weight percent of the blend.
Claim 48
Dependent Claim
136 words
An article having high heat stability with high impact resistance at low temperature such article being formed from a thermoplastic molding composition consisting essentially of a blend of propylene homopolymer and an elastomeric ethylene-propylene copolymer containing a finely divided feldsparic anhydrous alumino silicate wherein the feldsparic alumino silicate is present in the blend within the range of about 10 to about 50 weight percent and has an oil absorptivity of from about 12 to 30 pounds of oil per hundred pounds of the feldsparic alumino silicate and a Mohs' hardness of from about 5.0 to about 6.5, the blend contains substantially propylene homopolymer within the range of from about 35 to about 67 weight percent, and the elastomeric ethylene-propylene copolymer is present within the range of from about 10 to 20 weight percent of the blend.
Claim 49
Independent Claim
73 words
A method of providing both high heat stability and high impact resistance at low temperatures to a thermoplastic molding composition blend of thermoplastic polyolefin and an elastomeric polymer of 1-olefins, said method comprising incorporating from about 10 to about 50 weight percent of a finely divided untreated feldsparic anhydrous alumino silicate into said blend, said elastomeric polymer being present in an amount of from about 10 weight percent to about 20 weight percent.
Claim 50
Independent Claim
73 words
A method of providing both high heat stability and high impact resistance at low temperatures to a thermoplastic molding composition blend of thermoplastic polyolefin and an elastomeric polymer of 1-olefins, said method comprising incorporating from about 10 to about 50 weight percent of a finely divided untreated feldsparic anhydrous alumino silicate into said blend, said elastomeric polymer being present in an amount of from about 10 weight percent to about 20 weight percent.
Claim 51
Dependent Claim
29 words
The method of claim 45 wherein said thermoplastic polyolefin is selected from the group consisting of homopolymers and copolymers of olefins having from 2 to about 4 carbon atoms.
Claim 52
Dependent Claim
12 words
The method of claim 45 wherein said thermoplastic polyolefin is propylene homopolymer.
Claim 53
Dependent Claim
32 words
The method of claim 45 wherein said elastomeric polymer is selected from the group consisting of homopolymers, copolymers and terpolymers of 1-olefins having from 2 to about 5 carbon atoms per molecule.
Claim 54
Dependent Claim
13 words
The method of claim 45 wherein said elastomeric polymer is an ethylene-propylene copolymer.
Claim 55
Dependent Claim
20 words
The method of claim 45 wherein said thermoplastic polymer is propylene homopolymer and said elastomeric polymer is an ethylene-propylene copolymer.
Claim 56
Dependent Claim
26 words
The method of claim 50 wherein said propylene homopolymer is present in an amount of from about 35 to about 67 weight percent of said blend.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-01-08 | 1982-07-10 | 1983-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-08 | 1986-07-10 | 1987-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-08 | 1990-07-10 | 1991-01-09 | $7700.00 | Window Closed / Lapsed |